$ git clone -n https://src.fedoraproject.org/rpms/perl-Sys-Virt.git /var/lib/mock/f40-build-2282515-55547/root/chroot_tmpdir/scmroot/perl-Sys-Virt
Cloning into '/var/lib/mock/f40-build-2282515-55547/root/chroot_tmpdir/scmroot/perl-Sys-Virt'...
$ git fetch origin acf4f76de8cf9631b9e1809b56c5fbde19572559:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sys-Virt
 * [new ref]         acf4f76de8cf9631b9e1809b56c5fbde19572559 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at acf4f76 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild